How to passing a viewmodel value to other view model for making a validator

i want to pass a value of one of view model to another as a parameter for validator like this code below
"PDS_UsrPrice_5kkod23": {
                        "modelConfig": {
                            "path": "PDS.UsrPrice"
                        },
                        "validators": {
                            "MySuperValidator": {
                                "type": "usr.DGValidator",
                                "params": {
                                    "minValue": 0,
                                    "message": "#ResourceString(PriceCannotBeLess)#"
                                }
                            },
                         "MySecondValidator": {
                                "type": "usr.CommentValidator",
                                "params": {
                                    "minValue": 5000,
                                 "comment": "$PDS_UsrComment_tapvx6u",
                                    "message": "#ResourceString(CommentNeeded)#"
                                }
                            },
                        }
                    },
"PDS_UsrComment_tapvx6u": {
                        "modelConfig": {
                            "path": "PDS.UsrComment"
                        }
                    },
it is possible?